BIOSC140 ANATOMY REVIEW Due Tuesday February 1 Name: ______________________________________ INSTRUCTIONS: Please use a Scantron form 882-E or form 882-E-LOVAS to record your answers. This is a 100question GREEN Scantron – the brown ones won't work. You do not need to turn in this question packet, just turn in the Scantron. This counts as a homework assignment and is an open-book review of anatomy. I expect the class average to be 54 to 60 questions answered correctly, as you have plenty of time and can use your books and notes. You may work in groups but be sure you understand the questions and answers. Feel free to send me WebCT mail if you have questions. Choose the one best answer for each question. 1. The basic structural and functional units of an organism are: a) b) c) d) e) cells chemicals organs organ systems tissues 2. The two organ systems most responsible for control and coordination of the body's functions are: a) b) c) d) e) cardiovascular and lymphatic endocrine and digestive nervous and endocrine respiratory and cardiovascular urinary and digestive 3. The term "renal" refers to structures of which organ system? a) b) c) d) e) cardiovascular digestive endocrine lymphatic urinary 4. The functional cells of the lymphatic system are: a) b) c) d) e) epithelial cells red blood cells smooth muscle cells white blood cells yellow bone marrow cells 5. Molecules which have both water-soluble (hydrophilic) and water-insoluble (hydrophobic) regions are called "amphipathic" molecules. Which of the following is an example of an amphipathic molecule? a) b) c) d) e) actin cholesterol glucose phospholipid sodium chloride (NaCl) 6. The plasma membrane or cell membrane is composed of an approximately equal (by weight) amounts of: a) b) c) d) e) carbohydrates and lipids carbohydrates and proteins nucleic acids and proteins nucleic acids and lipids proteins and lipids page 1 BIOSC140 ANATOMY REVIEW Due Tuesday February 1 7. The glycocalyx consists of the carbohydrate groups of both glycoproteins and glycolipids, and is located: a) on the inside of the plasma membrane only b) on the outside of the plasma membrane only c) on both sides of the plasma membrane 8. Which of the following is NOT one of the functions of proteins in the plasma membrane? a) b) c) d) e) Some membrane proteins act as binding sites (receptors) and signal transducers. Some membrane proteins act as channels for ions and fluid to pass through the membrane. Some membrane proteins act as enzymes, or biological catalysts. Some membrane proteins act as markers that identify the cell. All of the above are functions of proteins in the plasma membrane. 9. The hallmark of active transport, as compared to passive transport, is: a) b) c) d) e) active transport involves the use of membrane proteins while passive transport never does active transport moves substances against their concentration gradient active transport uses ATP energy either directly or indirectly both (b) and (c) are correct all of the above are correct 10. The net movement of water across a semipermeable membrane from a region of high water concentration to a region of lower water concentration is called: a) b) c) d) bulk filtration facilitated diffusion osmosis pinocytosis 11. These organelles synthesize most of the ATP used in the body and are called the "powerhouse of the cell": a) b) c) d) e) centrioles Golgi bodies mitochondria nucleoli ribosomes 12. Where is DNA located in the cell? a) in the cytoplasm only b) in the nucleus only c) in both the cytoplasm and nucleus 13. Which of the following organelles consists of RNA and proteins and translates the instructions in a strand of mRNA into a chain of amino acids, the primary structure of a protein? a) b) c) d) e) centrosomes Golgi bodies nucleoli nucleosomes ribosomes 14. Which of the following cytoskeletal elements are the largest in diameter? a) b) c) d) intermediate filaments microfilaments microtubules all of the cytoskeletal elements have roughly the same diameter page 2 BIOSC140 ANATOMY REVIEW Due Tuesday February 1 15. Which of the following cytoskeletal elements are the strongest and most stable? a) b) c) d) intermediate filaments microfilaments microtubules all of the cytoskeletal elements are equally strong and stable 16. In what portion of the cell cycle does a cell spend the majority of its lifetime? a) b) c) d) e) anaphase interphase metaphase prophase telophase 17. In which phase of mitosis are the sister chromatids separated and pulled to opposite sides of the cell? a) b) c) d) e) anaphase interphase metaphase prophase telophase 18. What type of cell-to-cell junction acts as a "snap" that holds cells to its neighbors at potential stress points? It is also called a macula adherens. a) b) c) d) adhering junction desmosome gap junction tight junction 19. This type of cell-to-cell junction goes completely around the lateral sides of an epithelial cell, securing it to its neighbors by fusing their plasma membranes together. This forces materials passing through the epithelial layer to go through the cells rather than between them. a) b) c) d) adhering junction desmosome gap junction tight junction 20. Which of the following is responsible for resorption of bone? a) b) c) d) e) osteoblasts osteoclasts osteocytes osteons osteoprogenitor cells 21. This is the functional contractile unit of a skeletal muscle cell: a) b) c) d) e) muscle fiber myofibril myofilament sarcolemma sarcomere page 3 BIOSC140 ANATOMY REVIEW Due Tuesday February 1 22. Which of the following properties of muscle cells means "the ability to stretch from a resting length"? Look the words up if you aren't sure! a) b) c) d) contractility elasticity excitability extensibility 23. Which of the following properties of muscle cells is also seen in nerve cells? a) b) c) d) contractility elasticity excitability extensibility 24. The length of the A band in a sarcomere is equal to the length of the: a) b) c) d) e) actin filament distance between the Z discs thick filament thin filament none of the above, the length of the A band is variable depending upon contraction state 25. What changes length when a muscle cell contracts? a) b) c) d) the thick filament the thin filament both the thick and the thin filaments neither the thick nor the thin filament 26. What neurotransmitter is active at the neuromuscular junction of skeletal muscles? a) b) c) d) acetylcholine dopamine norepinephrine serotonin 27. What ion attaches to troponin, initiating muscle fiber contraction? a) b) c) d) e) calcium chloride magnesium sodium potassium 28. In skeletal muscle, where is the ion identified in Q.27 stored when the muscle is relaxed? a) b) c) d) nucleus sarcoplasm terminal cisternae (lateral sacs) T-tubules 29. Which of the following has the smallest diameter? a) b) c) d) e) skeletal muscle fiber skeletal muscle myofibril whole skeletal muscle skeletal muscle myofilament skeletal muscle fascicle page 4 BIOSC140 ANATOMY REVIEW Due Tuesday February 1 30. Another name for the autonomic nervous system is the: a) b) c) d) somatic motor system somatic sensory system visceral motor system visceral sensory system 31. (True/False) Neurons have a high metabolic rate and the nervous system contributes significantly to the basal metabolic rate (BMR). a) true b) false 32. (True/False) Bundles of intermediate filaments, called neurofibrils, extend into the axons of neurons. a) true b) false 33. Some axons appear white due to a covering consisting of tightly wound layers of the plasma membrane of neuroglial cells. This covering is called: a) b) c) d) endoneurium epineurium myelin perineurium 34. The cells responsible for myelination in the central nervous system (CNS) are: a) b) c) d) e) astrocytes ependymal cells microglial cells oligodendrocytes satellite cells 35. (True/False) Axons can sometimes regenerate. a) true b) false 36. An electrical synapse is a location where the cell membranes of adjacent cells are bound tightly together so that electrical signals and cytoplasmic ions can travel directly from one cell to the other. The cell-to-cell junctions involved in electrical synapses are: a) b) c) d) adhering junctions desmosomes gap junctions tight junctions 37. Which part of the autonomic nervous system is concerned with everyday activities such as salivation, lacrimation, urination, defecation and digestion (i.e. SLUDD)? a) the parasympathetic division b) the sympathetic division 38. Where would you find the cell body of a somatic sensory neuron? a) b) c) d) e) anterior horn of the gray matter of the spinal cord collateral ganglion (prevertebral ganglion) dorsal root ganglion (posterior root ganglion) lateral horn of the gray matter of the spinal cord sympathetic chain ganglion page 5 BIOSC140 ANATOMY REVIEW Due Tuesday February 1 39. Where would you find the cell body of a somatic motor neuron? a) b) c) d) e) anterior horn of the gray matter of the spinal cord collateral ganglion (prevertebral ganglion) dorsal root ganglion (posterior root ganglion) lateral horn of the gray matter of the spinal cord sympathetic chain ganglion 40. Where would you find the cell body of a preganglionic sympathetic motor neuron? a) b) c) d) brainstem collateral ganglion (prevertebral ganglion) lateral horn of the gray matter of the thoracic spinal cord sympathetic chain ganglion The next two questions are about peripheral motor neurons. Although these questions deal with both the somatic and autonomic nervous systems, if you cannot remember the answer it's usually in the chapter of your anatomy book that covers the autonomic nervous system. 41. How many motor neurons extend from the spinal cord to a skeletal muscle effector? a) b) c) d) e) 1 2 3 4 the number varies 42. How many motor neurons extend from the spinal cord to a smooth muscle effector? a) b) c) d) e) 1 2 3 4 the number varies 43. Which of the following neurons usually secretes norepinephrine as its neurotransmitter chemical? a) b) c) d) e) parasympathetic preganglionic fibers parasympathetic ganglionic (postganglionic) fibers somatic motor fibers sympathetic preganglionic fibers sympathetic ganglionic (postganglionic) fibers 44. What endocrine organ is controlled directly by the sympathetic division of the autonomic nervous system? a) b) c) d) e) adrenal cortex adrenal medulla pancreas parathyroid gland thyroid gland 45. What endocrine gland produces tropic hormones that directly control the adrenal cortex, thyroid, and gonads? a) b) c) d) e) anterior pituitary (adenohypophysis) hypothalamus pancreas parathyroid gland posterior pituitary (neurohypophysis) page 6 BIOSC140 ANATOMY REVIEW Due Tuesday February 1 46. Where are oxytocin and vasopressin (ADH) produced? a) b) c) d) e) adrenal cortex anterior pituitary hypothalamus kidney posterior pituitary 47. The most common white blood cells in the circulating blood are: a) b) c) d) e) basophils eosinophils lymphocytes monocytes neutrophils 48. Where is erythropoietin, the hormone that controls red blood cell production, produced? a) b) c) d) e) bone marrow heart hypothalamus kidney liver 49. When the blood leaves the right ventricle, which of the following structures does it pass by or through first? Only consider the structures listed. a) b) c) d) e) left atrium mitral valve pulmonary capillaries aortic semilunar valve tricuspid valve 50. Which chamber of the heart normally has the thickest myocardial wall? a) b) c) d) left atrium left ventricle right atrium right ventricle 51. Which of the following contain cardiac muscle as part of their structure? a) b) c) d) e) the heart and major arteries the heart and major veins the heart and both major arteries and major veins only the heart only major arteries and major veins 52. Which of the following is TRUE when comparing skeletal muscle and cardiac muscle? a) b) c) d) e) they have about equal amounts of sarcoplasmic reticulum both have extensive gap junctions both have sarcomeres both (a) and (c) are true all of the above are true page 7 BIOSC140 ANATOMY REVIEW Due Tuesday February 1 53. Most of the muscle in an artery is found in the: a) b) c) d) e) tunica adventitia tunica externa tunica intima (tunica interna) tunica media the muscle is distributed evenly throughout the artery wall 54. The smallest arteries lead to the capillary beds and are the most important vascular location for the control of blood pressure. They are called: a) b) c) d) e) arterioles conducting arteries elastic arteries muscular arteries distributing arteries 55. Which part of the cardiovascular system is has the greatest total volume? a) b) c) d) arteries (consider all together) capillaries (consider all together) heart (all chambers) veins (consider all together) 56. (True/False) It's just as healthy to breathe through your mouth as it is to breathe through your nose. a) true b) false 57. Which type of alveolar cells produces surfactant? a) b) c) d) alveolar type I cells alveolar type II cells alveolar macrophages (dust cells) all of these cells produce surfactant 58. The outer surface of the lungs is covered by: a) b) c) d) areolar tissue only parietal pleura simple cuboidal epithelium visceral pleura 59. The functional filtration unit of the kidney is called a: a) b) c) d) nephron renal corpuscle renal pyramid vasa recta 60. Which of the following is the correct order of the tubule system from renal corpuscle to the renal pelvis? (PCT = proximal convoluted tubule and DCT = distal convoluted tubule) a) b) c) d) collecting duct – glomerular capsule – DCT – nephron loop (loop of Henle) – PCT – papillary duct glomerular capsule – PCT – nephron loop (loop of Henle) – DCT – collecting duct – papillary duct nephron loop (loop of Henle) – PCT – DCT – glomerular capsule – papillary duct – collecting duct papillary duct – glomerular capsule – PCT – nephron loop (loop of Henle) – DCT – collecting duct – – – – – – – – – – – – – – – – That's all for now! – – – – – – – – – – – – – – – – page 8